Abstract: The output voltage of the three-phase uncontrolled rectifier circuit containing LC filter of 
high-voltage power supply system for the lower hybrid current drive is analyzed and the relationship between the 
output voltage and the circuit parameters is obtained. The three-phase uncontrolled rectifier circuit is simulated on 
the MATLAB/Simulink platform, and the waveform of the output voltage is obtained. It is observed that the 
output waveform meets the design requirements of the power supply system. 

Key words: Uncontrolled rectification, LC filtering, Theoretical calculation, Circuit simulation 

摘要：  The output voltage of the three-phase uncontrolled rectifier circuit containing LC filter of 
high-voltage power supply system for the lower hybrid current drive is analyzed and the relationship between the 
output voltage and the circuit parameters is obtained. The three-phase uncontrolled rectifier circuit is simulated on 
the MATLAB/Simulink platform, and the waveform of the output voltage is obtained. It is observed that the 
output waveform meets the design requirements of the power supply system. 

关键词: 不控整流, LC 滤波, 分析计算, 电路仿真